public class Example8_10 {
    public static void main (String args[ ]) {
        String str = "欢迎大家访问http://www.xiaojiang.cn了解、参观公司";
        String regex = "(http://|www)\56?\\w+\56{1}\\w+\56{1}\\p{Alpha}+";
        System.out.printf("替换\n\"%s\"\n中的网站链接信息后得到的字符串:\n",str);
        str = str.replaceAll(regex,"******");
        System.out.println(str);
        String money = "89,235,678￥";
        System.out.print(money+"转化成数字:");
        String s = money.replaceAll("[,\\p{Sc}]","") ; //"\\p{Sc}"可匹配任何货币符号
        long  number = Long.parseLong(s);
        System.out.println(number);
    }
}

